Transmission mechanism for automobiles.



H. nsm. TRANSMISSION MECHANISM FOR AUTOMOBILES. I

APPLICATION FILED JUNE l5, I912.

' Patented July 17, 1917.

3 SHEETSSHEET I.

H. L. FISHER. TRANSMISSION MECHANISM FOR AUTOMOBILES.

Patented July 17, 1917.

APPLICATION FILED JUNE I5. 1912.

3 SHEETS-SHEET 2.

APPLICATION FILED JUNE l5,19l2.

Patented July 17, 1917.

3 SHEETS-SHEET 3.

i tweet-WWW: Beit known that I? Hsnvnx L, Fianna; eitizenofthe'United states, residin'g'et Chibingo,- in the county W of $606k and State of vahtitges of frictional"transmission 'meeha- "'estionLjBut it will e'unders'tood that the fu l Improvements in '1rsmsmission' fMebha- Y onism 'fo'r- Automobiles, of which the ifQllO'W disad antage of. somewhat reduced em cie'n'em' is eom'paied to transmission :mechahism: involving positive connections as by toothed gearing, A by! reason of "the friction (1116 1111 lai'ge art to Unhelahcedpressurebe- 'twoenthe ooopereting elements. In my imi- I InFigs. Q'and 8"I h v rovetlform of transmission mechanism, *oweyergthi's disadvantage is eliminated by reeson' of the eYehly'baIenoed; pressure disyti'ibution' Without sacrificing" any of the ad snis m snitfoutabowe ,Other advantages of the invefltiofi willeppeagrfrom the following de' v tailedfidesori tion end the drawings accompenyihgian' fomnin a part of this applipmicfl llflr" form of machines in connection i which my[{iriventiol'lf is 1 disclosed, is illustrflted anddescribed iii detail for the purpose ofexeniiflification on1'y,"though it is my preferred lioiipgisnd myinvention is not limited 1 to this." particular embodiment; but embraces other modifieations endiforms comsubstantieny Within the scope of the ffo owing'cleimsr j Referr ng above, a planview 'of 'so, much of the body of" a" vehicle as it is necessary to illi'lst'fete for; the explanation of myinventiomhavingthe latterapplied thereto; Fig.

Fig. 11 Fig; 3*is ejvertical seotion'perpenofthatfigurehut; on an enlargedtsc'ale; Fig; 4;-i8 a vertical section upon theplane of the 'iine l' igi '3, showing, howevjer oer'tain parts tobe referred to; herein, eftefiin' elevetiori"; Fi 5 is s detailedwerftieel-eeetion ugon jthehne 55 of .Figjl but 611th e sen le; Fi 6 isa vertical sec '6 op. t e pl nneeft 1g. 7 in similar View but wuhthe parts I v Lmiiols, sssmiron crownonsnbso F emcseo, minors, A, conronsmou 01*] A312 S IsSIONJiEo ANIs For; lstiiono I I ifl oetion of Letters lfeteht. H tpin ic ti mm June-15.1912. smelled-203192 'ae""section"on1ine of fixed 0011s 16 P nned v shaft by means of"; o collar 7 described. I

to the dreviring's alliided to by "mechanism to be now described.

'dicul'ar to the plafie fofi Fig. 2 upon the line the levers no many test against the direction of'the arrows. hesame re er-V enoe symbols are applied to thevarious pefts wherever theyere=found"in;thedrawings I Inthe' par ti clilar embodimefit of filh i y volition shown in the drawings, the; ra

shownin'Fig. 1, in "whichtheside fr sa shoyvn at 8 8 com'1ectedhy cross b its 9,19 Wh1eh"sup port"=the-trapsniissiori' mechfin niL The engine is riot shown except fora-the fly wfheel A and shaft-Bthei'eof'but eof y pp v d .1' I usual-or epproved'we to'the I which. extends'oenti a y" andw 0n'gitudine1ly-70 of the frame beneath the; or en la mounted by t e, t 1 a 311 sp bt v ly I ehpwnaseti fectory 1; t oonneetion between aft BYand-IO-co sistingof them-ass 1 "andn B :ori' the: J respeetive shafts oonneeted bythel-"inksflo T Upon the dIfiVe shaft 'lQfand' between the cross-bars 9, 9 are mountede pair: of friction" disks l3," 14 of which the rear embel: 131s: j

adjustebly keyed to the shaft (Fig. '5) and adjusted "Iongitudmai v i hOred'aJt 'lSQ' and tapped to receive a threaded s1eeve119," the pertsflheing lockedE whemed? I i s ed b lq k nu 20. A c remm 3 pla'yiis by'thismeans permittedrlthefdisk'13 but'itsthrust in thedire'etioli 'of the rear'ehd- I t of shaft is'adjustehlyl h v 90 M e Thef fo'rward meriiber disks is likewise splin'ed upon the shaft and-permitted s e-min l n it d a movement thereof but within limits, "it

msy he fo'reed towards its ioompeni dish of; levels 21,21- arep'ivo 1 t 22 which is pinned to the" H surrounds the drivingshaftwithin therbeam ing 11 'and hoyo contact with the hub25 The forwardly "eirtendin the-seine into" damme 'd 1! h 7 land are rounded atitheir en 51190130 e line 6''-6' oft oFigi entrance between theni 26, whic h is adjustable e10 and" provided-j with" af m oovea are received the anti-friction rollers 30 'of' ing handle within reach of the driver of the machine. It will'now be apparent that when the cone sleeve 26 is thrust rearwardly by th' o erator it forces the longer arms of the lever 21 apart and through the links 23 and the thrust tube 24 forces the for-' ward disk in a rearward direction. The purpose and ifunction of this construction will appear later. i I

Gonnectin the cross pieces:9, 9 near the 1! was en 8 thereoi, and parallel to the side M11178, 8 is a pair of bridge pieces 34, 34' which are somewhat raised or arched at their cchtr' as shown-in-Fig. 2, and a pair of a le irons 35, 35' are connected across 30' the pieces'between the friction disks 1%, 14- and supports theiparts of the adjust ingand" reversing mechimism as will appear below." At the center-of the a le irons 35, 85 dnd'inthe plane of the driv ng shift, a 2B" castin '36 is bolted tdthe angle irons and is forms 'at its lower edge with a hub 39 which is bored transversely to receive and support driving shaft 10 at this point.

The she 40,- 40 which are driven-by the GI transmission mechanism are mounted in bearings 41, 41 bolted to the side rails 8, 8

as shdwn more partieula-rlyin Fig. 3 and formed of two longitudinal sections asis comnionwith bearings of this character. At

88 their outer ends the shafts 1 40, 40 carry sprocket wheels 42, 42 which receive the sprocket chains 43, 43 by which the traction Wheels are driven in the usualmanner. If

desired for greater strength brace rods 44,

4'6 44' may be pivoted to lugs 45, 45 upon the journal" and attached to some rigid part of theseme. Y

The" frictional means which I employ for oiiperatingwith the friction disks for transit mitting the motion from the drive shaft to i the sectional shafts is capable of adjust inent toward and fromfthecenter ofzthe fiictioirilisksfor the purpose of regulating the provided with surfaces 48, 48 ofiahy well known Lbr approved material fdr this purpm. In order that the friction rollels may be llhfushinhw' and" out of contact with the 05 friction disks andreversed at will, each pair thereof is mounted in a revoluble frame agear housing 49, 49,21. journal housing 50; 50 and longitudinal-1y connecting" members 51, :51. These two revdluble "i5 arerormed-or provided at their inner ends with arbors 52, 52which' are'journaled in the bearings in the hub 39 before mentioned,- (see Fig. 3) sit-their outer ends are levolubly lfioufiwd or journaled upon the inner ends of the shafts 40, 40 which areextended within the side rails of the chassis for this purpose. The outer wall of each gear housing is someitliatt'iiicltened as at 53 to form a substantial bearing upon the shaft which as seen in Fig. 3 projects through the housingand'is received at its inner'end in a Seat or bearing 54' inthe innerwwall 55, a gtear' 56' being pinned or keyed to said she in rmediate the walls for a purpose which w' appear.

The friction rollers 46, 47 in eachaframe are splined or keyed upon-a pair of shafts 57, 57 which are mounted at their opposite ends id spring pressed adjustable bearings 58, 59 carried in ways 60, 61 formed in the outer wall of the gear housing and in the bearing housing respectively. Springsfifl,

61 normally force the ends of the shafts outward, and adjustingscrews62, 63 limit their outward movement. The splined shafts '57,, 57 enter into. the housing 49, through-longitudinal openings 64, 64 which permit a sllght movement of said shafts towardand frointhe center of said housing andwithin the housing each shaft-is provided witha pinion 65, 66 (see Figs.- 3, 6 and 7 Between one of these pinions 66 and the gear 56 upon" the inner end of-the sectional shaftis mterposeda single idler gear 67; while between the other-such pinion 65 and the gear upon'the sectional shaft is interposed a pair of idler gears 68, 69 to transmit motion from thefriction rollers to said shaft the intermediate gear being such that the oppositely rota-tingfriction rollers of each pair will tend-to drive the shaft in the same directionunder all circumstances;

For the purpose of rotating the pivoted frames to'throw the friction rolls intoand out of contact with the disks and to reverse the direction of the same,- the pivoted frames are provided on their outer faces with gear Wheels 70, 70 which are fixed thereto, and actuated by longitudinally moving rack bars 71, 71 which are propelled in d posite directions'from each other by a lever 72 pivoted centrally of the forward cross bar 9 and adustably connected to said racks by eye-bolts 73, 73 and angle pieces 74, 74 (see Figs. 1', Q-and 3). The lever 72 is formed with or connected to a forwardly-extending arm 75,;which is connected by a link '76 with a bell crank 77, mounted-upon a bracket '78 projecting from the side bar 8, and to the other arm of said bell ciankvis connected the operating rod 79; which" may be connected to any suitable handle orlever within reach of'the operator of the vehicle (see Fig.1); It will now bea'pparent that through the connections described the lever 72 maybe v v{about fo'fthej o H I v I brthe'v f wbiitee in ithesbe l i ewbi iipi t at 'inye' t m provides a; perfectly balanced "construction Qhiftjeki" or sitvl'ln giabo'iit its pivot whereby the rhcl teere recipro'eated in opposite directions from each other and 'thepwoted renew-ry 'in frames with whibh'they respctivelyjeiigage, shifted jeoi'reepondifi'gly to either Silitlft "or stop the fiehiele oi to'i ei erse its direction andfrom the centers cube fri'ctioh disks tind'theieby control the p'eed of the Vehicle,

sitidiiislks a're'pr'ovided with outwardly proj' eeting hubs :80, "8O reduced. at their outer ends'to re'ceite perforated disks 82, 82 whihh am mounted upon the shafts 57, 57' ztndkthe sidebars 51, 51 for longitudinal motein'ent with'relzttiuii to the seine; Nuts 8l,,8lf upon 5 the hubs 80, 80 Secure, dis'ke iii} place.

order to shift hese adjutiiig' disks tof i'vard and hfrfoihfthe centers" of the friction 20 7 v v v v 1 'their peripheries by grooved 'arcuate- -pi'eces disks the foiinere're partially en'cii'oled zit [83," as which are eup srtedmm arms s4, s4

fprojeeting sleeves 85; 85' pin'iled to trensv'erse' rods 86, 86 elidiiig inflguitle eyes 87, 87 mounted upon thevangle irony-35, 35 FY". 11); The sliding ro'ds ure in'turn adjust by 1 a rod 88, under control "of the o e-awe w ich is connehted to an arm-s9 v Trigid'wi-th a IeVorQD pivoted to the eeiitrztl I 80 casting 36 at 91 and connected" to sleeves 85,

., as on said liding, e; the lihks 92, 92. 1 :It will lie-apparent that: by shifting, rodgss the 'operaiforfcatn Swing the lever 96 and p i through the Sliding 'fods 86, 86 and their as" tion rolls towaifd end from the centers of the friction disks eonnection'to the disks 82", 82' shift the frieof. the vehicle.

and i go regulate the s peegl The diameter of the frictiona S1315 stantially one-half the :distancebetiieen the friction glieksf so, that when the former are l1;-ewu g t rb in h ine o e n the e i-ters substatntiall into the'horizo'ntal posit on; the @119; 0 each peiiwill be n (:61;-

' 1; manner eaeh 011m ai'ndl with theefljeent "(lieks ,'see dottedlines 6. The pressure j between; these-elements at the time the fric- Htion rollserelshifted limited to aifextent by n e ity f ve t ng thii by bend e i F r: thi n nd ,1 crease th'e frietiomilfpressure to 'eny manila .I'd'sired; l'ha'ye provided the n1eans'forehifb 'ingthef forwardlfriotion v with reference therear friction 'disk hejretofore kiesh'ribed. ln operating-the vehielethehandle orleter controlling the rod 33 for ehifting the cone 1 s1eeief36 {and mntrbui the pressure beautomobiles" and the 1 missiio'ii "means cgnnected to mounted on the Shaft "aid 1; I

shaft, 21, pair" of opposed mounted on the shaft, fricti other, and power trans o viat ng lnedespfi g sequent friction and" We andthat the thrust of a1 bethken-up upo the that there is absolutely I elaim:

1. A ower trifle H mprisin a: up

a, pair offlfriction disks secured revolution therewith, frietioh taneously engaging each di Sides of the eenter thereofye" mittin' means an" ee dtot o pqs d frictioh disks and transmitting their end th opposite. irections, in

teheously enga ing etc sidesofuthe cen erlthereo "a" the friction rollers" respect 3.111 a powertransnii io' nism, a. shaft, ajpair of opposed frioti n iiiskj ward and from ehchoth ri simultaneously ngaging-e h disk site sides of the center their "f, tindtransniissiori means vcon ed and the friction: roller L'I'n' a; devicefofthe-c tween, and simultaneously g 1 k v. disks, n'ieajns renami g Itoward the other while eatid [disks are; rotsitihgfl and t power transmitting 'meiinsco'nnected, to the shaft and friction rollers" peotiire-Iy.

including a pair of levers and}; cone. s1 vei for forcing the lat'n nected to the 'ehaft and spectively. Ina machine of vthe cl shaft, a-pairof frietio' i'o 'ously' engagi of the respectl transmitting YIne and to the friction r0 afldeviee of the cla rd gb' if pai jf o osed I-frictid 8. In a device of the class described, a shaft, a pair of opposed friction disks mounted thereon, airs of friction rollers engaging both disks on opposite sides of their respective centers, driven shafts and gearing connecting said friction rollers to the ast named shafts.

9. In a device of the class described, a shaft, opposed friction disks mounted thereon, airs of friction rollers'engaging both disl s on opposite sides of the respective centers of the latter, and adjustable toward and from the centers of the disks, means for adjusting the rollers, and power transmitting means connected to the shaft and friction rollers respectively.

10. .In a device of theclass described, a

power shaft, a pair of opposed friction disks mounted thereon, pairs of friction rollers engaging both disks on opposite sides of the respective centers of the latter, shafts upon which said rollers are splined, means for adjustin the rollers alon said shafts, andconnectlons from the sha s for transmitting power therefrom. I

11. In a device of the class described, a power shaft, a pair of opposed friction disks thereon, pairs of friction rollers engaging .said disks on op osite sides of their respective centers, sha s upon which the friction rollers are splined, means for adjusting the rollers on said shafts toward and from the centers of the disks, gears u on said roller shafts a pair of driven sha ts each having a gear thereon, and intermediate gearing connecting the same with the gears on the roller shafts.

12. In a device of the class described, a power shaft, a pair of opposed friction disks on said shaft, pairs of friction rollers engaging both disks on opposite sides of the respective centers thereof, shafts upon which said disks are splined, means common to each pair of rollers for adjusting the same longitudinally of their shafts, and power transmitting means connected to said shafts.

. 13. In a device of the class described, a power shaft, a pair of o posed friction disks on said, shaft, pairs 0 friction rollers engaging both disks on o posite sides of the respective centers thereo shafts upon which said disks are splined, means common to the airs of rollersfor adjusting the same longitudinally of their shafts, a shaft common to the rollers of each fpair and gearing between said common sha of the rollers.

14. In a device of theclass described, a power shaft, a pair of opposed friction disks and the shafts mounted on the shaft, pans of friction rollers engaging both disks on o posite sides of their respective centers, shafts upon which said rollers are splined, means common to the pairs of rollers for adjusting thesame verse the contacts 0 vlarly to the drive shaft, a

longitudinally of their shafts, an operating rod, connections therefrom to said adjusting each pair of rollers is mounted, means for swinging said frame to bring the respective rollers of each pair into and out of contact with the o posed disks, and power transmitting mec anism connected to said rollers.

16.. In a device of the class described, a power shaft, 9. pair of opposed friction disks thereon, pairs of frictlon rollers engaging both disks on opposite sides of the respective centers thereof, a pivoted frame in which each pair of rollers is mounted, means for swinging said frame to bring the respective rollers of each pair into and out of contact with the opposed disks, and to reverse the contacts of the rollers with said disks.

1 7. In a device ofthe class described, a power shaft, a pair-of friction disks mounted upon the same, pairs of friction rollers engaging both disks on opposite sides of their respective centers, a pivoted frame in which each air' of rollers is mounted, means for swmgin said framev adapted to bring the rollers of each pairinto and out of contact with the opposed disks and to reengaging both disks on opposite sides of their respective centers, a pivoted frame in which each pairof rollersismounted, means for swingin the frame adapted to bring the rollers 0 each pair into and out of con- .tact with the opposed disks and to reverse the contacts of the rollers with said disks, a

shaft concentric with the pivot of each frame and caring intermediate the latter shaft and 516 respective rollers.

19. .In a device of the class described, a

the rollers with said centers thereo a pivoted frame in which power shaft, a pair of opposed friction disks 4 mounted thereon, a pairof frames revolubly mounted between the disks perpendicuair of friction rollers in each frame and a justable toward and from the center of the friction disks, means for adjusting the rollers, and powertransmitting means connected to the rollers.

20. In a device of the class described, a power disk, 21. pair of opposed friction rollers mounted thereon, apair of frames revolubly mounted between the disks and on axes perpendicular to thepower shaft, a air of shafts mounted in each frame paralle to the axis thereof, a, pair of friction rollers lact s a '21. In i a device of the class described, a

power shaft, apairof opposedfriction disks mounted thereon, a pair of frames revolubly mounted between thedisks and on axes perpendicular to the power shaft, a pair of shafts mounted in each frame parallel to the axis thereof, a friction roller sp'lined upon each shaft and a driven shaft concentric with the axis of each pivoted frame and gearin connecting suchv driven shaft with each 0 the roller shafts.

p 22. In a device of the class described, a power shaft, a pair of opposed friction disks mounted thereon, a pair of frames revolubly mounted between the disks and on axes per pendicular 'to the, power shaft, a'pair of shafts mounted in each frame parallel to the axis thereof, a friction roller splined upon each shaft, a driven shaft concentric with tlie'axis of each pivoted frame, a gear on said shaft, gears on the roller shafts and caring intermediate the gear on the driven s aft and the gears on the roller shafts whereb the driven shaft is turned in the same irection from each of the friction rollers. 23. In a device of the class described, a drive shaft, a pair of opposed friction disks mounted thereon, a pair of pivoted frames mounted between the'friction disks on axes perpendicular to thedriveshaft and on pposi d thereo a Pa Q ,$P g ressedshafts mounted in each frame paralel to the axis thereof, friction rollers mouiited u on such shafts, a driven shaft journale concentrically with respect to each pivoted frame and gearing between the driven shaft and said roller shafts.

24. In a device of the class described, a drive shaft a pair of opposed friction disks mounted thereon, a pair of frames revolubly mounted between said disks on axes perpendicular to the drive shaft, a pair of friction rollers mounted in each frame, a driven shaft and connection from said rollers to the driven shaft and means for forcing the fric tion disks toward each other.

25. In a device of the class described, a drive shaft a pair of opposed friction disks mounted thereon, a pair of frames revolubly mountedbetween said disks on axes perpendicular to the drive shaft, a pair of friction rollers mounted in each frame, a driven shaft and connections from said rollers to the driven shaft, a sleeve upon the drive shaft adapted to bear against one of the disks, levers and links connected to the sleeve and driving shaft respectively and means for actuating the levers to force the said sleeve in the direction of the disk against which it bears.

26. In a device of the class described, a drive shaft, a pair of opposed friction disks thereon, a pair of frames revolubly mounted between said disks on opposite sides ofand on an axes perpendicular to the driving shaft, a pair ofsha'fts in each ofsaid'frames parallel to the axis of thelatter, friction rollers mounted on the shafts, ahousingint'o which the shafts extend,"a driven shaft also extending into said housin anj'dgearingin' termediate the driven sha' t "and {the roller shafts. v r,

27; In a device of'the class described, a drive shaft, a pair of opposed friction disks thereon, a pair of frames'revolubl mounted between said disks'on opposite si es crane on' an axis perpendicular to the driving shaft, a pair of shafts in'each of said frames parallel to the axis of the latter,"friction' rollers mounted on the latter shaft s, adri'ven shaft forming one of the bearings for said frame and gearing between saidshaft and the roller shafts.

28. In a deviceof the class described, a

drive shaft, a pair of opposed friction disks thereon, a pair of frames revolubl mounted between said disks on opposite si es'of and on an 'axis perpendicular to the driving shaft, driven shafts forming the outer journals for said frames and ge'a'ring between said shaft and the "roller shafts, a "gearfixcd to each ofsaid 'frames, oppositely Iiioving kl' p r ing ith said; gears ndia ea for operating the racks. v

29-. In a d ice of the, class,., scr besi-, a

7 driving shaft, "a pair "of "opposed friction disks mounted thereon, a pair of frames revolubly mounted between such friction disks on opposite sides of the driving shaft and on axes perpendicular thereto, a pair of shafts in each frame extending parallel to the axis thereof, roller disks keyed upon such shafts, a driven shaft concentric with the axis of the frame, gearing between the driven shaft and the shafts 1n the frame, friction rollers adjustable longitudinally of such shafts and means for adjusting the friction rollers.

30. In a device of the class described, a driving shaft, a pair of opposed friction disks mounted thereon, a pair of frames revolubly mounted between such friction disks on opposite sides of the driving shaft and on axes perpendicular thereto, a pair of shafts in each frame extending parallel to the axis thereof, roller disks keyed upon such shafts a driven shaft concentric with the axis of the frame, gears between the driven shaft and the shafts in the frame. friction rollers adjustable longitudinally of such shafts, a disk parallel and connected to the friction rollers and revoluble with the frame, means engaging the disk and with reference to which it is revoluble for adjusti'ng the'sapie toward and from the drive shaft and ,cijnnections for operating sa1d means,

. 31. In a fldevice, of the class described, a

drive shaft,a pai r of opposed friction disks mounted tlf n, a pair of frames pivoted between-til r ction disks on opposite sides of'the dfriv t and'on an axis perpendicular theret air of shafts mounted in each frame, alf B1 to the axis thereof, a

friction diskS lQ iIlS mounted. upon the ing. th Second" disk toward shaftf dj v the first meii 'qn ddiska a driven Shaft" friction. rolls between the disks geared to: said driv n shaft mounted; between and adapted to riven by the friction disks.

33. In at: mission mechanism for automobilesand the-like, a drive Shaft, a pair of friction mo'uIitB l thereon for new lution therewith, an abutment on tl1e' -'sliafi7 for limiting the movement of one of the 35 friction disks, means mounted upon the shaft for'adjustin' the seconddisk toward the first mentione disk, a pair of friction rolls geared to the driven shaft arranged between the friction disk'an'd bearing upon 40 each other and the friction disks.

34. In a transmission mechanism'fo'ra'utm mobiles and the like, a driving shaft, a pairof' revolubly movable friction disks mounted upon the shaft, means mounted wholly 45 upon the shaft for forcing the disks toward each other, airs of friction rollers mounted between an adapted to bear upon the friction disks, and drivenshafts geared to said rolls.

35. In a transmission mechanism forautomobiles and the like, a driving shaft, a pair of relatively adjustable friction disks mounted upon the shaft, pairs of friction rolls between the disks and on opposite sides" 55 offthe power shaft, meansfor adjusting the friction rolls toward and from the power shaft, means for swinging the pairs of rolls into and out ofcontact with the friction disks, driven shafts and connections rom the rolls to the driven shaft.

HARVEY FISHER;

Witnesses;

JAMES B; MACAULY, ROBERT DOBBERMAN.

Gopiso'f this atent iii-a e obtained an five cents each," by addressing the "commissioner-0r retells;

Washington, D. 6'." 

